Warm today, then cooling trend begins

Nov. 5, 2012

Updated Aug. 21, 2013 1:17 p.m.

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A surfer makes his exit from Dog Beach in Huntington Beach Monday. Orange County should see one more day of warm, dry weather Tuesday before a major reversal sets in – modest cooling at first, then a blast of wintry weather by the end of the week. JOSHUA SUDOCK, THE ORANGE COUNTY REGISTER

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Biking a trail above Dog Beach in Huntington Beach on Monday. Highs from the beginning to the end of the week could drop 25 to 35 degrees, going from some 20 degrees above normal Monday to about 10 degrees below normal for this time of year. JOSHUA SUDOCK, THE ORANGE COUNTY REGISTER

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Biking the Walnut Trail in Irvine. Highs from the beginning to the end of the week could drop 25 to 35 degrees, going from some 20 degrees above normal Monday to about 10 degrees below normal for this time of year. JOSHUA SUDOCK, THE ORANGE COUNTY REGISTER

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A surfer leaves Dog Beach in Huntington Beach Monday. Orange County should see one more day of warm, dry weather Tuesday before a major reversal sets in – modest cooling at first, then a blast of wintry weather by the end of the week. JOSHUA SUDOCK, THE ORANGE COUNTY REGISTER

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Under a cloudless blue sky, angler Hank Brady of Bandera, Texas, fishes for rainbow trout at Anaheim Lake on Monday. Anaheim temperatures climbed into the mid-90s as the former Anaheim resident contrasted the local weather to that in Texas. "It's fantastic weather here, really ideal. I get enjoyment here even if I didn't catch a thing," he said. H. LORREN AU JR., THE ORANGE COUNTY REGISTER

A surfer makes his exit from Dog Beach in Huntington Beach Monday. Orange County should see one more day of warm, dry weather Tuesday before a major reversal sets in – modest cooling at first, then a blast of wintry weather by the end of the week.JOSHUA SUDOCK, THE ORANGE COUNTY REGISTER

Orange County should see one more day of warm, dry weather Tuesday before a major reversal sets in – modest cooling at first, then a blast of wintry weather by the end of the week.

A strong cold front is expected to move down the coast from the north, bringing a chance of rain, possible snow to the mountains and a sharp drop in temperatures, the National Weather Service says.

Highs from the beginning to the end of the week could drop 25 to 35 degrees, going from some 20 degrees above normal Monday to about 10 degrees below normal for this time of year.

Monday's highs climbed to the mid-90s, including 96 in Fullerton, 95 in Mission Viejo and 94 in Yorba Linda, as a high-pressure air system lingered over the region.

And high-pressure air centered over Nevada lingers Tuesday. Expect inland highs of 82 to 87 inland, 73 to 78 on the coast.

Wednesday is expected to be partly cloudy in the morning with some fog, then mostly sunny, with inland highs of 75 to 80, about 67 to 72 on the coast. Fog could be thick for the morning commute, cutting visibility to a quarter mile or less in some places.

The cold low-pressure system from the northwest, already making itself felt Wednesday, moves through the region Thursday.

Thursday manages only partly cloudy skies after some low clouds and patchy fog in the morning, with further cooling: 66 to 71 inland, 66 on the coast.

And there's a slight chance of rain Thursday evening, and a chance overnight and Friday morning, likely in the one-tenth to quarter-inch range.

We might even see a dusting of snow on the Santa Ana Mountains.

Temperatures should plummet Friday. Highs are expected to be in the 59 to 64 range with a slight chance of rain in the morning and another chance in the afternoon.

The chance of rain continues into the evening, with a slight chance Saturday morning.

Saturday is otherwise partly cloudy with highs of 60 to 65.

Sunday is mostly sunny and a little warmer, 67 to to 72, as high pressure returns.

Monday is mostly sunny and 76 to 81 inland, 73 on the coast.

It's best to be ready for more weather shifts, however. By midweek next week, more low pressure cold moves in.

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